| First Author | Aglipay JA | Year | 2003 |
| Journal | Oncogene | Volume | 22 |
| Issue | 55 | Pages | 8931-8 |
| PubMed ID | 14654789 | Mgi Jnum | J:87001 |
| Mgi Id | MGI:2682549 | Doi | 10.1038/sj.onc.1207057 |
| Citation | Aglipay JA, et al. (2003) A member of the Pyrin family, IFI16, is a novel BRCA1-associated protein involved in the p53-mediated apoptosis pathway. Oncogene 22(55):8931-8 |
| abstractText | We identified IFI16 as a BRCA1-associated protein involved in p53-mediated apoptosis. IFI16 contains the Pyrin/PAAD/DAPIN domain, commonly found in cell death-associated proteins. BRCA1 (aa 502-802) interacted with the IFI16 Pyrin domain (aa 1-130). We found that IFI16 was localized in the nucleoplasm and nucleoli. Clear nucleolar IFI16 localization was not observed in HCC1937 BRCA1 mutant cells, but reintroduction of wild-type BRCA1 restored IFI16 nuclear relocalization following IR (ionizing radiation). Coexpression of IFI16 and BRCA1 enhanced DNA damage-induced apoptosis in mouse embryonic fibroblasts from BRCA1 mutant mice expressing wild-type p53, although mutant IFI16 deficient in binding to BRCA1 did not induce apoptosis. Furthermore, tetracycline-induced IFI16 collaborated in inducing apoptosis when adenovirus p53 was expressed in DNA-damaged p53-deficient EJ cells. These results indicate a BRCA1-IFI16 role in p53-mediated transmission of DNA damage signals and apoptosis. |
